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(No Model.) 3 Sheets-Sheet 3.

D. S. HINES, Deod. M. L. HINES, Executrix, and G. G. HINES, Executor.

PUMP.

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* YNITED STATES PATENT (hunch.

DAUPHIN S. HINES, OF BROOKLYN, NEWV YORK; MARIA L. HINES, EXECU- TRIX, AND CYRUS O. HINES, EXEOUTOR, OF SAID DAUPHIN S. I'IINES, DECEASED, ASSIGNORS TO WVILLIAM A. PERRY, OF BAY RIDGE, AND CHARLES C. WVORTHTNGTON, OF IRVINGTON, NEW YORK.

PUMP.

SPECIFICATION forming part of Letters Patent No. 387,074, dated July 31, 1888.

Application filed May 14, 1885. Serial No. 165.4l5. (No-model.)

T aZZ whom it may concern:

Be itknown that LDAUPHIN S. HINEs, a citizen of the United States, residing at Brooklyn, county of Kings,and State of New York,have

Invented certain new and usefullmprovements in Pumps, fully described and represented in the following specification and the accompany ing drawings,forming a part of the same.

This invention relates to that general class [Q of pumps which are provided with two or more plungers, and which are known as du plex-pumps, it being the object of the inventlon to provide a pump of this character which shall be especially adapted for use in discharg- :5 ing the contents of sewers and for other similar purposes, where the water which passes through the pump is liable to contain a large amount of sediment or debris.

To this end the invention consistsin certain features of construction and in an arrange ment of the various parts, all of which will be hereinafter so particularly explained and pointed out as to render any extended preliminary description unnecessary.

In the accompanying drawings, Figure l is a side elevation of the water end of a duplexpump embodying the presentinvention. Fig. 2 IS a plan view of the same. Fig. 8 is an end elevation of the same, looking from the right of Figs. 1 and 2. Fig. 4 is a cross-section of the same taken on the line 00 a: of Figs. 1 and 2. Fig. 5 is a horizontal section taken upon the line as a". of Fig. 4. Fig. 6 is a similar view taken upon the line .2 z of the same figure. Fig. 7 is an elevation of one of the plates which carries the force-valves,and Fig. Sis a section of the same taken upon the line as x of Fig. 7.

Referring to said drawings, it is to be understood that A B are thetwo water-cylindersofthe 4o pump, which are constructed and arranged in substantially the same manner as is common in pumpingengines of the duplex class, except that they are located a somewhat greater distance from each other than is common in those pumps which are designed for ordinary pumping purposes. These cylinders are provided with ordinary plungers, O D, the rods 0 d of which pass through stuffingboxes in the ends of the cylinders in the usual manner and are connected directly to the pistons of the steam end of the pump.

The steam end of the pump is not illustrated in the drawings, because it has no relation to the present invention. It may be constructed in any of the ways in which the steam ends of 5 duplex pumps are commonly constructed.

The suction-chamber E is made of very large size in order to secure the necessary area for the valves, and, in order to secure the necessary strength with the least amount of metahis made cylindrical in form. The chamber islocated below and between the water-cylinders and is provided with a large suction-pipe, F, which communicates directly with the sewer G or other place from which the water is 6 to be drawn. The suction-chamber is pro vided with two longitudinal partitions, L M, by which it is divided into three compartments, the compartment between the partitions communicating with the suction-pipe F, 7c while the compartments upon the outsides of the partitions communicate with four large passages orducts, H I J K, leading to the opposite ends of the respective water cylinders. I The partitions L M are arranged in vertical or substantially vertical positions, and are provided with large openings, which are covered by plates Z, carrying the suction-valves m. The plates Zare provided upon their outer sides with the seats a for the valves, and these seats, as will be observed, are so arranged that the valves occupy an inclined position. Only a part of the valves are shown in Fig. 4. The valves m may be of the ordinary hinged construction, as shown, and so arranged that they 8 5 swing upward to open and fall downward onto their seats by their own weight. If preferred, the valves may be formed of pieces of flexible materiaL-as leather or rubber-fastened at their upper edges to the seats. The chamber E is provided at its opposite ends with handholes N, through which access can readily be had to both sides of the valves, and also with man-holes 0, through which the plates Z, carrying the valves, can be inserted and removed. 5 These holes 0 also afford means by which a person can, when desired, enter the suctionch-amber and pass along in the compartment between the partitions L M to clean the valves or for any other purpose. This vertical arrangement of the plates carrying the valves is a feature of great importance in a pump of this character, as it prevents sediment or debris from settling and accumulating upon the valves when the pump is not in operation, and thus rendering the valves inoperative.

The construction and arrangement by which a person is enabled to enter the suction-chamber and pass along between the plates carrying the valves is also a feature of great importance in a pump of this character, as, owing to the character of the work which the. pump is to perform, the valves are liable to become frequently clogged or deranged, and, owing to the large size of the pump, great labor would be involved if it were necessary to remove the valve-plates or valves whenever cleaning or repairs were necessary.

The force-chamber P is located di rcctly above and upon the suctionchamber and between the water-cylinders A B, and is similarin construction to the former, it being of large size and cylindrical in form. It is provided with two vertical or substantially vertical partitions, UV,which extend longitudinally of the chamber and divide it into three compartments. The compartment between the partitions U V communicates with the large discharge-pipe W, through which the water is discharged in the usual manner. The compartments upon the outsides of the partitions U V communicate with four large passages or ducts, Q R S T, leading from the opposite ends of the respective water-cylinders. The partitions U V are provided with large openings, which are covered by plates u, carrying the foree-valves c. The plates u are similar to the plates Z, and are provided upon thcirinner sides with seats to for the valves, and these seats, like the seats a for the suction-valves, are so arranged that the valves occupy an inclined position. These valves 11 are similar in construction to the suctionvalves, and are so arranged that they swing upward to open and fall downward onto their seats by their own weight. The forcechainber, like the chamber E, is also provided at its opposite ends with hand-holes X, through which access can be had to the chamber upon both sides of the valves, and at one end with a man-hole, Y, through which the plates u can be inserted and removed, and through which a person can enter the chan1- ber so as to pass along in the compartment between the partitions to inspect or repair the valves, the same as already described in connection with the suction-chamber.

By reason of the vertical arrangement of the partitions U V and of the manholeYthe same advantages are gained in connection with the force-chamber that have already been stated in connection with the suction-chamber.

It will be observed that by reason of the arrangement of the parts just described the walls of the passages leading from the suctionchamber to the pump-cylinders and from the pump cylinders to the force chamber can readily be cast integral with the chambers and cylinders, as shown, and this makes it possible to construct the shell of the pump of comparatively few castings, which greatly simplities the construction and proportionately reduces the cost. It will also be observed that by reason of this arrangement of the various parts the water-cylinders and force-chamber rest directly upon the suetionchambeigso that it becomes possible to support the whole pump by means of simple projections, as Z, cast upon the sides of the suction-chamber, thus avoiding the necessity of erecting special mason-work for the support of the pump.

\Vhat I claim is- The combination, in a duplex pump, of a horizontally-arranged suction-chamber,ahorizontally arranged force chamber supported upon the top of the suction -ehamber, two horizontal pump cylinders arranged at the sides of and parallel with suction and force chambers, two vertical or substantially vertical partitions extending the length of each of said chambers and carrying suction and force valves, suction and discharge pipes communicating with said chambers between the partitions, passages H I J K, leading from the outsides of the partitions of the suction-chamber to the opposite ends of each cylinder, and similar passages, Q, R S T, leading from the opposite ends of each cylinder to the outsides of the partitions of the force-chamber, substantially as described.

In testimony whereofI have hereunto set my hand in the presence of two subscribing witnesses.

D. S. HINES.

Witnesses:

B. W. PIERsoN, JAS. W. PARKER.

ICC 

